Electric flat-iron.



G. P. MADSBN.

ELECTRIC FLAT IRON.

APPLICATION FILED SEPT. 26, 1912.

. 1,O93,791 Patented Apr. 21, 191 1 comm, A conromrron or 'ncmoax.

rum-mo hecillcaflon of Letters Patent.

Patented A r. 21, 1914.

Application filed September :0, 1912. serial 1n. 722,417.

To all whom it may concern: Be it known that I, CHAnLns P. MADSEN, acitizen ofthe United States of America,

and a resident of Chicago, county of Cook,

have invented certain Improvements in Electric of which the following isa and State of Illinois, new and useful Flat-Irons, specification.

The main objects of this invention are to provide an improved and moreconvenient method of controlling the current in electric flat irons; toprovide an improved form of switch which is adapted to be operated tomake a quick make and break in the circuit; to provide an improvedconstruction of the flat iron handle for accommodating said switch; toprovide an improved arrangement of the switch within said handlewherebyit may be conveniently and quickly shlfted; to provide improved meansfor connectlng the electric conductors with the heating element of theflat iron; and to pro vide improved means of this kind particu-. larlyadapted for use in conjunction with the improved winding disclosed andclaimed in my copend'ing application executed by me of even dateherewith and bearing Serial N 0. 722,416.

An illustrative embodiment of this inven tion is shown in theaccompanying drawings in Which Figure 1 is a side elevation partly insection. Fig. 2 is an enlarged sectional detail of the controllingswitch and its casing, the section being taken on the line -A of Fig. 1.Fig. 3 is an enlarged sectionaldetail taken on the line CC of Fig. 1.Fig. 4 is an enlarged sectional detail taken on the line B-B of Fig. 2.Fig. 5 is an enlarged detail of the switch key. Fig. 6 is ,a detail,partly sectional, .of a part of the rear handle support showing theconstruction whereby the electric conductors are connected to the wiresleading to the heating element.

In the construction shown in the drawings, the flat iron comprises theheating bar 25. which is open or closed position pressure plate 5 forholding the heating element against the insulating compound on theheating plate 1. These parts are housed within the body or casing 9which in turn is secured in place by means of the ornamental nut 11 onthe upper end of the central screw 6. v

The handle 12 is of any suitable construc tion and is carried by tubular supports 13 and 14 located respectively at the front and rear endsof the casing 9, and extending through apertures 15 and 16 in the shellof the casing. The supports are suitably UNITED STATES PATENT orrroa;

CHARLES P. MADSEI T, OF CHICAGO, ILLINOIS ASSIGNOB 1'0 TEE MICHIGANSTOVE shouldered to engage the upper face of the casing 9, and theirlower ends are-threaded and provided with nuts 17 and 18 bearing againstthe inner face of the casing 9, and thus lockingthe supports rigidly inplace.

s A bolt 19 extends through the handle 12 from end to end and is securedby a nut 20 which serves to rigidlysecure the handle between the upperends of the supports 13 and14.

The upper part of the forward tubular sup-port 1-3 is enlarged to form acap or housing 21 for the controlling switchr23, having a transverselyshiftable switch member or push key 24 projecting through apertures atboth sides of member 24 has a central contact shiftingconstructed toengage and oppositely shift the contact. member 26 into and out ofengagement with the fixed con- A spring 42 on-the stud tacts 27. and 28.43 causes the switch to remain set in either until the push'key 24 isagain operated to reverse the switch. It will be seen that mounting theswitch in this manner renders it quickly and conveniently operated bythe hand of the operator which grips the handle, it being possible toshift the member 24 in respectively opposite directions by'pressure ofthe operators thumb and forefinger, thereby throwing the switch on andoifwithout necessitating the release of the hand from the handle. Inorder to protect the switch against injury, through the striking of theprojecting ends of thekey 24 against an obstruction in case the flatiron is accidentally overturned or falls, the adjacent metal part of theswitch casing is provided with projecting lugs 24 as shown in Fig. 3.

The rear tubular support 14 has a prothe casing 21. The

'- adjusted without necessitating the dismanmay be altered or om'ttedwithout depart- I said handle and comprising a, movable opjecting casingon the plate or cap 29 which supports the handle 12. This casingcomprises an integral part 30 and a removable cap 31 secured to the cap29 by screws, and is provided for the purpose of housing theconnections. of the electric conductors to the wires connected to theterminals of the heating element...

The heating element 4 is provided with binding posts 33 and 34 locatedat the op posite ends thereof, which are connected by the wires 35 and36 to binding posts 37 and 38 on the cap 29. The wire 36 leads upthrough the forward support 13 and is connected to the contacts 27 and28 of the controlling switch. The electric conductors 39 lead into theneck 40 formed by the part 30 and cap 31 and are connected to thebinding posts 37 and 38. The usual spring 41 embraces the conductors 39,being secured in position thereon by the clamping of the end within theneck 40. This construction provides a convenient method for makingconnections of conductors to the heating element which may beconveniently tling of the iron. The operation of the device shownissimilar to that otthe usual electrically heated flat irons, with theexception of the ease and convenience with which the switch may beoperated in the present invention. Other features of structuraladvantage will readily appear to those skilled in the art from aninspection ofthe drawings and the foregoing description.

Although but one specific embodiment of this invention has been hereinshown an described, it will be understood that numerous details of theconstruction shown ingfrom the spirit of this invention as defined bythe following claims. Some of the features of novelty herein brieflydescribed and illustrated in the drawings are not claimed herein but aremade the subjectmatter of the copendingapplication hercinbeforementioned.

Iclaim:

1. In, an electric flat iron, the combination of a body portion, ahandle mounted thereon. and a controlling switch located within cratingmember formed and arranged to project outwardly" the walls of the andleat opposite sides thereof to permit said operating member to. be shiftedin op-' posite directions by the thumb and fore-- finger respectively ofthe same hand which gripsth'e handle.-

2. An electric flat iron comprising a body portion, heating element insaid body portion, a swltch adapted to be set either open or closed andlocated in said handle, and a p body portion and serving as a conduitfor conductors between said switch and heating element.

3. In an electric flat iron, the combination of a body portion, aheating element in said bodyportion, a handle having a casing at one endthereof, a controlling push switch mounted in said casing, a keyprojecting on each side for controlling the operation of said switch;and projecting ears on said casing for protecting said projecting key.

4. In an electric fiat iron, the combination of a body portion; a pairof supports extending upwardly therefrom and having caps at their upperends; a handle extending between said supports and having its endsconnected to said caps, one of said caps being hollow with an opening oneach side; and a push switch mounted therein and operalble through saidopening.

5. In an electric flat iron, the combination of a bottom plate, apressure plate, a heating element interposed between said plates, ahollow casing surrounding said pressure late and heating element andcoacting with said bottom plate to form-a housing therefor, tubularsupports extending upward from said casing, a. handle mounted betweenthe upper ends of said supports, a switch at.

one end of said handle, and conductors housed within said casing andsupports and adapted to connect said heating element and switch incircuit with an outside source of electricity.

6; In an electric flat iron, the combination of a body portion, aheating element secur therein, a handle having a tubular supporttherefor mounted on said body portion, a pair of binding posts securedto said support, wires connected to said binding posts and leading downthrough said tubular support'and connected to said heating element,

conductors connected to said binding posts, and a cap adapted tobesecured-over said binding posts and connections.

7. In an electric flat iron, the combination v of a body portion, aheating element secured therein, ahandle, a tubular support mount, ed onsaid body portion and having a cap adapted to support said handle,bindsifi on said cap, wires connected to binding posts and leading downthrough connected fo and said tubular support and heating element,conductors to said binding posts, and a cap adapted to be secured tosupport for bindingpostsand audiotapporting the adjacent portion of saidm ductors.

-8. In an electric flat iron, the combination of a body portion, aheating element second therein, a handle, a tubular support mounted onsaid body portion and having a cap adapted to support said handle,indinfi posts on said cap, wires connectedto jacent binding posts andleading down through said tubular support and connected to said heatingelement, conductors connected to said binding posts, and a cap adaptedto be handle and adapted to be set either open or closed, and electricalconnections for the switch and heating element, said handle and readyopening and closing of the switch suc cessively as desired by theoperating hand during use of said device. 7

Signed at Detroit this 7th day of September 1912.

CHARLES P. MADSENL Witnesses:

EMMETT DWYER, WILLIAM J. KEEP.

'switch being constructed and arranged for

